Dmitry
ce0966fca2
Riverpod + go_router с auth-guard, NavigationRail на широком экране и bottom bar на узком. Токены в flutter_secure_storage, на web access живёт в памяти. Интерцептор подставляет токен и делает ровно один refresh на 401. Деньги приходят строками и форматируются через Decimal: парсить их в double значило бы терять копейки ровно там, где бэкенд их бережёт.
95 lines
3.2 KiB
Dart
95 lines
3.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:go_router/go_router.dart';
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class _Destination {
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const _Destination(this.path, this.icon, this.selectedIcon, this.label);
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final String path;
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final IconData icon;
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final IconData selectedIcon;
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final String label;
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}
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const _destinations = [
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_Destination('/', Icons.dashboard_outlined, Icons.dashboard, 'Обзор'),
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_Destination('/accounts', Icons.account_balance_outlined, Icons.account_balance, 'Счета'),
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_Destination('/cashflow', Icons.swap_horiz_outlined, Icons.swap_horiz, 'Потоки'),
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_Destination('/categories', Icons.category_outlined, Icons.category, 'Категории'),
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_Destination(
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'/transactions', Icons.receipt_long_outlined, Icons.receipt_long, 'Операции'),
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_Destination('/rules', Icons.rule_folder_outlined, Icons.rule_folder, 'Правила'),
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_Destination('/sync', Icons.sync_outlined, Icons.sync, 'Синк'),
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_Destination('/settings', Icons.settings_outlined, Icons.settings, 'Настройки'),
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];
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/// Breakpoints per the plan: bottom bar under 600, collapsed rail 600–1200,
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/// extended rail at 1200 and above.
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const _narrowBreakpoint = 600.0;
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const _wideBreakpoint = 1200.0;
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/// Adaptive navigation shell around the current route: a bottom
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/// [NavigationBar] on narrow surfaces, a [NavigationRail] (collapsed or
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/// extended) otherwise.
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class AppShell extends StatelessWidget {
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const AppShell({required this.location, required this.child, super.key});
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final String location;
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final Widget child;
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int get _selectedIndex {
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final i = _destinations.indexWhere((d) => d.path == location);
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return i == -1 ? 0 : i;
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}
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void _onSelect(BuildContext context, int index) {
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if (index != _selectedIndex) context.go(_destinations[index].path);
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}
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@override
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Widget build(BuildContext context) {
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final width = MediaQuery.sizeOf(context).width;
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if (width < _narrowBreakpoint) {
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return Scaffold(
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body: SafeArea(child: child),
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bottomNavigationBar: NavigationBar(
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selectedIndex: _selectedIndex,
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onDestinationSelected: (i) => _onSelect(context, i),
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destinations: [
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for (final d in _destinations)
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NavigationDestination(
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icon: Icon(d.icon),
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selectedIcon: Icon(d.selectedIcon),
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label: d.label,
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),
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],
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),
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);
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}
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final extended = width >= _wideBreakpoint;
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return Scaffold(
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body: Row(
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children: [
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NavigationRail(
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extended: extended,
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minExtendedWidth: 220,
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selectedIndex: _selectedIndex,
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onDestinationSelected: (i) => _onSelect(context, i),
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labelType: extended ? NavigationRailLabelType.none : NavigationRailLabelType.selected,
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destinations: [
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for (final d in _destinations)
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NavigationRailDestination(
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icon: Icon(d.icon),
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selectedIcon: Icon(d.selectedIcon),
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label: Text(d.label),
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),
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],
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),
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const VerticalDivider(width: 1),
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Expanded(child: SafeArea(child: child)),
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],
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),
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);
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}
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}
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